fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip]

6d224861 came from a --no-checkout worktree whose empty index made the
commit drop every file except two. This restores 05b50d2b's full tree and
correctly adds stacks/stem95su/gdrive-sync.tf + the service-catalog stem95su
entry. Forward-only (parent=6d224861, no force-push); [ci skip] since the
live infra was never applied from the broken commit.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/skills/setup-project/templates/Dockerfile.README.md

@@ -0,0 +1,24 @@
+# Build notes
+
+## Build
+
+```
+docker build --platform linux/amd64 -t {{IMAGE_NAME}}:{{TAG}} .
+```
+
+## Run
+
+```
+docker run --rm -p {{CONTAINER_PORT}}:{{CONTAINER_PORT}} {{IMAGE_NAME}}:{{TAG}}
+```
+
+## Configuration
+
+{{ENV_VARS_TABLE}}
+
+## Notes
+
+- Built for `linux/amd64`; multi-arch not tested.
+- Image size: `{{IMAGE_SIZE}}`, base: `{{BASE_IMAGE}}`.
+- Runs as a non-root user.
+{{EXTRA_NOTES}}